Now showing items 1-10 of 30
Cryoprotective effect of different glycerol concentrations on domestic cat spermatozoa
(Theriogenology, 2013-10-15) [Artigo]
Cryopreservation of spermatozoa is a pivotal tool in assisted reproduction, and studies aiming to establish optimal freezing/thawing protocols are essential to enhance sperm survival. The objectives of the present study ...
Post-thaw viability of in vivo-produced canine blastocysts cryopreserved by slow freezing
(Theriogenology, 2012-08-01) [Artigo]
The objectives were to evaluate the reexpansion blastocoele rate, post-thaw viability, and in vitro development of canine blastocysts cryopreserved by slow freezing in 1.0 m glycerol (GLY) or 1.5 m ethylene glycol (EG). ...
Cryopreservation of equine embryos with glycerol plus sucrose and glycerol plus 1,2-propanediol.
(Equine veterinary journal. Supplement, 1997-12-01) [Artigo]
Six or 7-day-old equine embryos were divided into 4 groups; Group 1, n = 15, Day 7 embryos destined for immediate transfer; Group 2, n = 15, Day 6 embryos destined for deep-freezing with glycerol plus sucrose as cryoprotectant; ...
Variações metodológicas na criopreservação de sêmen sexado de bovinos
(Veterinária e Zootecnia, 2011) [Artigo]
The objective of this study was to evaluate the effects of 3 different cooling protocols for freezing bovine sexed semen by flow cytometry. It was used two ejaculates of 10 bulls, after collection of semen that was processed ...
Viabilidad de espermatozoides de ovinos en diferentes sistemas de refrigeración
(Revista Brasileira de Ciência Veterinária, 2014) [Artigo]
The aim of this study was to evaluate the ovine sperm quality colled in thermal boxs. Six ejaculates from 2 rams were collected using artificial vagina. Samples were analyzed to volume, mass movement, motility, vigor, sperm ...
Comparison of in vitro and in vivo fertilizing potential of bovine semen frozen in egg yolk or new lecithin based extenders
(Livestock Science, 2012-11-01) [Artigo]
One of the main factors known to influence quality and fertility of bovine cryopreserved semen is the extender used. In this matter, a great worldwide interest has been directed to the development of chemically defined ...
Cooling of ejaculated and epididymal stallion sperm
(Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013-09-03) [Artigo]
After a serious injury or sudden death, epididymis cauda sperm recovery and cryopreservation may present as the last opportunity to obtain genetic material from a valuable stallion. This study evaluated the viability of ...
Cryopreservation and fertility of ejaculated and epididymal stallion sperm
(Animal Reproduction Science, 2011-09-01) [Artigo]
The cryopreservation of epididymal sperm is important to preserve genetic material from valuable deceased males. This study evaluated the viability of sperm samples from eight stallions under three conditions: (1) collected ...
Effect of Storage Time and Temperature of Equine Epididymis on the Viability, Motion Parameters, and Freezability of Epididymal Sperm
(Journal of Equine Veterinary Science, 2013-03-01) [Artigo]
The recovery of sperm from the epididymal cauda may be the last chance to obtain genetic material when sudden death or serious injuries occur in valuable stallions. However, the lack of technical knowledge regarding the ...
Evaluation of acrosomal integrity of stallions cryopreserved with amides and glycerol
(Animal Reproduction Science, 2005-10-01) [Resumo]